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A Novel Transformation of Esters to Alkynes with 1-Substituted Benzotriazoles

✍ Scribed by Katritzky, Alan R.; Wang, Jin; Karodia, Nazira; Li, Jianqing

Book ID
127023440
Publisher
American Chemical Society
Year
1997
Tongue
English
Weight
247 KB
Volume
62
Category
Article
ISSN
0022-3263

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A novel selective route to 1-substituted
A novel selective route to 1-substituted benzotriazoles via lithiation of simple 1-alkylbenzotriazoles
✍ Katritzky, Alan R. ;Wu, Jing ;Kuzmierkiewicz, Wojciech ;Rachwal, Stanislaw πŸ“‚ Article πŸ“… 1994 πŸ› John Wiley and Sons 🌐 English βš– 406 KB

## Abstract 1‐Methylbenzotriazole (2a) is lithiated readily with butyllithium or LDA at the methyl group to 4 and the subsequent reaction with various electrophiles provides 1‐substituted benzotriazoles 5. Other 1‐(__n__‐alkyl)benzotriazoles 2 also undergo lithiation with LDA, the carbanions can be